| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 小毛毛雨 | 29°/17° | 0.1 mm |
| 2025-12-02 | 小毛毛雨 | 28°/17° | 0.9 mm |
| 2025-12-03 | 毛毛雨 | 28°/18° | 2.0 mm |
| 2025-12-04 | 阴 | 29°/18° | 0.0 mm |
| 2025-12-05 | 阴 | 29°/18° | 0.0 mm |
| 2025-12-06 | 晴间多云 | 29°/18° | 0.0 mm |
| 2025-12-07 | 阴 | 29°/19° | 0.0 mm |
| 2025-12-08 | 小毛毛雨 | 29°/19° | 0.3 mm |
| 2025-12-09 | 小毛毛雨 | 30°/19° | 0.2 mm |
| 2025-12-10 | 多云 | 29°/18° | 0.0 mm |
| 2025-12-11 | 小毛毛雨 | 29°/19° | 0.5 mm |
| 2025-12-12 | 大毛毛雨 | 30°/18° | 2.1 mm |
| 2025-12-13 | 多云 | 31°/15° | 0.0 mm |
| 2025-12-14 | 阴 | 30°/19° | 0.0 mm |
| 2025-12-15 | 小毛毛雨 | 28°/20° | 0.5 mm |
| 2025-12-16 | 阴 | 29°/18° | 0.0 mm |
| 2025-12-17 | 阴 | 30°/18° | 0.0 mm |
| 2025-12-18 | 晴间多云 | 30°/19° | 0.0 mm |
| 2025-12-19 | 阴 | 30°/19° | 0.0 mm |
| 2025-12-20 | 多云 | 30°/18° | 0.0 mm |
| 2025-12-21 | 晴间多云 | 29°/18° | 0.0 mm |
| 2025-12-22 | 小毛毛雨 | 29°/18° | 0.6 mm |
| 2025-12-23 | 小毛毛雨 | 27°/17° | 0.2 mm |
| 2025-12-24 | 小毛毛雨 | 28°/18° | 0.9 mm |
| 2025-12-25 | 小毛毛雨 | 26°/16° | 0.7 mm |
| 2025-12-26 | 小毛毛雨 | 27°/15° | 0.5 mm |
| 2025-12-27 | 毛毛雨 | 28°/15° | 2.3 mm |
| 2025-12-28 | 毛毛雨 | 27°/16° | 1.1 mm |
| 2025-12-29 | 小毛毛雨 | 27°/16° | 0.1 mm |
| 2025-12-30 | 晴天 | 28°/16° | 0.0 mm |
| 2025-12-31 | 小毛毛雨 | 28°/17° | 0.2 mm |
2025年12月蒙西翁共记录 31 天，平均最高 28℃、最低 17℃，降水日 17 天。